Stress-grades range from F7 to F34. Stress grades F11, F14, F17, F22 and F27 are the most
common.
AS 6669 specifies four (4) surface qualities Class 2, Class 3, Class 4 and Class 5. These
surface qualities are aligned with AS 3610.
The most common surface classes from AS 6669 for formply manufactured in Australasia
are:
- Class 2
- Class 3
- Good 1 side – Class 2 one surface, Class 5 the alternate surface
Normally only one (1) Class 2 pour can be reliably achieved per side due to exposure of the
surface, wear and abuse on the jobsite. However, if protected and handled carefully, a
number of Class 2 pours can often be achieved.
Note that formply is not recommended for Class 1 surface finishes
